--- src/macterm.c.old	Sun Jan 23 17:17:16 2005
+++ src/macterm.c	Sun Jan 23 16:48:40 2005
@@ -303,6 +303,9 @@
 extern void menubar_selection_callback (FRAME_PTR, int);
 extern void set_frame_menubar (FRAME_PTR, int, int);
 
+/* Make Trans Parency */
+int mac_transparency_alpha;
+
 /* X display function emulation */
 
 void
@@ -5282,6 +5285,8 @@
   f->win_gravity = NorthWestGravity;
   x_wm_set_size_hint (f, (long) 0, 0);
 
+  SetWindowAlpha (f->output_data.mac->mWP, ((float)mac_transparency_alpha/100));
+
   SizeWindow (FRAME_MAC_WINDOW (f), pixelwidth, pixelheight, 0);
 
   /* Now, strictly speaking, we can't be sure that this is accurate,
@@ -9945,6 +9950,11 @@
 command, this enables the Mac keyboard to be used to enter non-ASCII
 characters directly.  */);
   mac_keyboard_text_encoding = kTextEncodingMacRoman;
+
+  DEFVAR_INT ("mac-transparency-alpha", &mac_transparency_alpha,
+    doc: /* Transparency ratio, can be set integer between 0 to 100.
+0 means fully transparent, 100 means non transparent */);
+  mac_transparency_alpha = 100;
 }
 
 /* arch-tag: f2259165-4454-4c04-a029-a133c8af7b5b